1 // SPDX-License-Identifier: ISC 2 /* Copyright (C) 2020 MediaTek Inc. */ 3 4 #include <linux/etherdevice.h> 5 #include <linux/platform_device.h> 6 #include <linux/pci.h> 7 #include <linux/module.h> 8 #include <net/ipv6.h> 9 #include "mt7921.h" 10 #include "mcu.h" 11 12 static int 13 mt7921_init_he_caps(struct mt792x_phy *phy, enum nl80211_band band, 14 struct ieee80211_sband_iftype_data *data) 15 { 16 int i, idx = 0; 17 int nss = hweight8(phy->mt76->chainmask); 18 u16 mcs_map = 0; 19 20 for (i = 0; i < 8; i++) { 21 if (i < nss) 22 mcs_map |= (IEEE80211_HE_MCS_SUPPORT_0_11 << (i * 2)); 23 else 24 mcs_map |= (IEEE80211_HE_MCS_NOT_SUPPORTED << (i * 2)); 25 } 26 27 for (i = 0; i < NUM_NL80211_IFTYPES; i++) { 28 struct ieee80211_sta_he_cap *he_cap = &data[idx].he_cap; 29 struct ieee80211_he_cap_elem *he_cap_elem = 30 &he_cap->he_cap_elem; 31 struct ieee80211_he_mcs_nss_supp *he_mcs = 32 &he_cap->he_mcs_nss_supp; 33 34 switch (i) { 35 case NL80211_IFTYPE_STATION: 36 case NL80211_IFTYPE_AP: 37 break; 38 default: 39 continue; 40 } 41 42 data[idx].types_mask = BIT(i); 43 he_cap->has_he = true; 44 45 he_cap_elem->mac_cap_info[0] = 46 IEEE80211_HE_MAC_CAP0_HTC_HE; 47 he_cap_elem->mac_cap_info[3] = 48 IEEE80211_HE_MAC_CAP3_OMI_CONTROL | 49 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3; 50 he_cap_elem->mac_cap_info[4] = 51 IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU; 52 53 if (band == NL80211_BAND_2GHZ) 54 he_cap_elem->phy_cap_info[0] = 55 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 56 else 57 he_cap_elem->phy_cap_info[0] = 58 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G; 59 60 he_cap_elem->phy_cap_info[1] = 61 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 62 he_cap_elem->phy_cap_info[2] = 63 IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US | 64 IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ | 65 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ | 66 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO | 67 IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO; 68 69 switch (i) { 70 case NL80211_IFTYPE_AP: 71 he_cap_elem->mac_cap_info[2] |= 72 IEEE80211_HE_MAC_CAP2_BSR; 73 he_cap_elem->mac_cap_info[4] |= 74 IEEE80211_HE_MAC_CAP4_BQR; 75 he_cap_elem->mac_cap_info[5] |= 76 IEEE80211_HE_MAC_CAP5_OM_CTRL_UL_MU_DATA_DIS_RX; 77 he_cap_elem->phy_cap_info[3] |= 78 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK | 79 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK; 80 he_cap_elem->phy_cap_info[6] |= 81 IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE | 82 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT; 83 he_cap_elem->phy_cap_info[9] |= 84 IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU | 85 IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU; 86 break; 87 case NL80211_IFTYPE_STATION: 88 he_cap_elem->mac_cap_info[1] |= 89 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US; 90 91 if (band == NL80211_BAND_2GHZ) 92 he_cap_elem->phy_cap_info[0] |= 93 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G; 94 else 95 he_cap_elem->phy_cap_info[0] |= 96 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G; 97 98 he_cap_elem->phy_cap_info[1] |= 99 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A | 100 IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US; 101 he_cap_elem->phy_cap_info[3] |= 102 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK | 103 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK; 104 he_cap_elem->phy_cap_info[4] |= 105 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE | 106 IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4; 107 he_cap_elem->phy_cap_info[5] |= 108 IEEE80211_HE_PHY_CAP5_NG16_SU_FEEDBACK | 109 IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK; 110 he_cap_elem->phy_cap_info[6] |= 111 IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU | 112 IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU | 113 IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB | 114 IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE | 115 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT; 116 he_cap_elem->phy_cap_info[7] |= 117 IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_SUPP | 118 IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI; 119 he_cap_elem->phy_cap_info[8] |= 120 IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G | 121 IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484; 122 he_cap_elem->phy_cap_info[9] |= 123 IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM | 124 IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK | 125 IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU | 126 IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU | 127 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB | 128 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB; 129 130 if (is_mt7922(phy->mt76->dev)) { 131 he_cap_elem->phy_cap_info[0] |= 132 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G; 133 he_cap_elem->phy_cap_info[8] |= 134 IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU | 135 IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU; 136 } 137 break; 138 } 139 140 he_mcs->rx_mcs_80 = cpu_to_le16(mcs_map); 141 he_mcs->tx_mcs_80 = cpu_to_le16(mcs_map); 142 if (is_mt7922(phy->mt76->dev)) { 143 he_mcs->rx_mcs_160 = cpu_to_le16(mcs_map); 144 he_mcs->tx_mcs_160 = cpu_to_le16(mcs_map); 145 } 146 147 memset(he_cap->ppe_thres, 0, sizeof(he_cap->ppe_thres)); 148 if (he_cap_elem->phy_cap_info[6] & 149 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 150 mt76_connac_gen_ppe_thresh(he_cap->ppe_thres, nss); 151 } else { 152 he_cap_elem->phy_cap_info[9] |= 153 u8_encode_bits(IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US, 154 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 155 } 156 157 if (band == NL80211_BAND_6GHZ) { 158 struct ieee80211_supported_band *sband = 159 &phy->mt76->sband_5g.sband; 160 struct ieee80211_sta_vht_cap *vht_cap = &sband->vht_cap; 161 struct ieee80211_sta_ht_cap *ht_cap = &sband->ht_cap; 162 u32 exp; 163 u16 cap; 164 165 cap = u16_encode_bits(ht_cap->ampdu_density, 166 IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START); 167 exp = u32_get_bits(vht_cap->cap, 168 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK); 169 cap |= u16_encode_bits(exp, 170 IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP); 171 exp = u32_get_bits(vht_cap->cap, 172 IEEE80211_VHT_CAP_MAX_MPDU_MASK); 173 cap |= u16_encode_bits(exp, 174 IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN); 175 if (vht_cap->cap & IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN) 176 cap |= IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS; 177 if (vht_cap->cap & IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN) 178 cap |= IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS; 179 180 data[idx].he_6ghz_capa.capa = cpu_to_le16(cap); 181 } 182 idx++; 183 } 184 185 return idx; 186 } 187 188 void mt7921_set_stream_he_caps(struct mt792x_phy *phy) 189 { 190 struct ieee80211_sband_iftype_data *data; 191 struct ieee80211_supported_band *band; 192 int n; 193 194 if (phy->mt76->cap.has_2ghz) { 195 data = phy->iftype[NL80211_BAND_2GHZ]; 196 n = mt7921_init_he_caps(phy, NL80211_BAND_2GHZ, data); 197 198 band = &phy->mt76->sband_2g.sband; 199 _ieee80211_set_sband_iftype_data(band, data, n); 200 } 201 202 if (phy->mt76->cap.has_5ghz) { 203 data = phy->iftype[NL80211_BAND_5GHZ]; 204 n = mt7921_init_he_caps(phy, NL80211_BAND_5GHZ, data); 205 206 band = &phy->mt76->sband_5g.sband; 207 _ieee80211_set_sband_iftype_data(band, data, n); 208 209 if (phy->mt76->cap.has_6ghz) { 210 data = phy->iftype[NL80211_BAND_6GHZ]; 211 n = mt7921_init_he_caps(phy, NL80211_BAND_6GHZ, data); 212 213 band = &phy->mt76->sband_6g.sband; 214 _ieee80211_set_sband_iftype_data(band, data, n); 215 } 216 } 217 } 218 219 int __mt7921_start(struct mt792x_phy *phy) 220 { 221 struct mt76_phy *mphy = phy->mt76; 222 int err; 223 224 err = mt76_connac_mcu_set_mac_enable(mphy->dev, 0, true, false); 225 if (err) 226 return err; 227 228 err = mt76_connac_mcu_set_channel_domain(mphy); 229 if (err) 230 return err; 231 232 err = mt7921_mcu_set_chan_info(phy, MCU_EXT_CMD(SET_RX_PATH)); 233 if (err) 234 return err; 235 236 err = mt7921_set_tx_sar_pwr(mphy->hw, NULL); 237 if (err) 238 return err; 239 240 mt792x_mac_reset_counters(phy); 241 set_bit(MT76_STATE_RUNNING, &mphy->state); 242 243 ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work, 244 MT792x_WATCHDOG_TIME); 245 if (mt76_is_mmio(mphy->dev)) { 246 err = mt7921_mcu_radio_led_ctrl(phy->dev, EXT_CMD_RADIO_LED_CTRL_ENABLE); 247 if (err) 248 return err; 249 250 err = mt7921_mcu_radio_led_ctrl(phy->dev, EXT_CMD_RADIO_ON_LED); 251 if (err) 252 return err; 253 } 254 255 if (phy->chip_cap & MT792x_CHIP_CAP_WF_RF_PIN_CTRL_EVT_EN) { 256 mt7921_mcu_wf_rf_pin_ctrl(phy, WF_RF_PIN_INIT); 257 wiphy_rfkill_start_polling(mphy->hw->wiphy); 258 } 259 260 return 0; 261 } 262 EXPORT_SYMBOL_GPL(__mt7921_start); 263 264 static int mt7921_start(struct ieee80211_hw *hw) 265 { 266 struct mt792x_phy *phy = mt792x_hw_phy(hw); 267 int err; 268 269 mt792x_mutex_acquire(phy->dev); 270 err = __mt7921_start(phy); 271 mt792x_mutex_release(phy->dev); 272 273 return err; 274 } 275 276 static void mt7921_stop(struct ieee80211_hw *hw, bool suspend) 277 { 278 struct mt792x_dev *dev = mt792x_hw_dev(hw); 279 int err = 0; 280 281 if (mt76_is_mmio(&dev->mt76)) { 282 mt792x_mutex_acquire(dev); 283 err = mt7921_mcu_radio_led_ctrl(dev, EXT_CMD_RADIO_OFF_LED); 284 mt792x_mutex_release(dev); 285 if (err) 286 return; 287 } 288 289 mt792x_stop(hw, false); 290 } 291 292 static int 293 mt7921_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 294 { 295 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 296 struct mt792x_dev *dev = mt792x_hw_dev(hw); 297 struct mt792x_phy *phy = mt792x_hw_phy(hw); 298 struct mt76_txq *mtxq; 299 int idx, ret = 0; 300 301 mt792x_mutex_acquire(dev); 302 303 mvif->bss_conf.mt76.idx = __ffs64(~dev->mt76.vif_mask); 304 if (mvif->bss_conf.mt76.idx >= MT792x_MAX_INTERFACES) { 305 ret = -ENOSPC; 306 goto out; 307 } 308 309 mvif->bss_conf.mt76.omac_idx = mvif->bss_conf.mt76.idx; 310 mvif->phy = phy; 311 mvif->bss_conf.vif = mvif; 312 mvif->bss_conf.mt76.band_idx = 0; 313 mvif->bss_conf.mt76.wmm_idx = mvif->bss_conf.mt76.idx % MT76_CONNAC_MAX_WMM_SETS; 314 315 ret = mt76_connac_mcu_uni_add_dev(&dev->mphy, &vif->bss_conf, 316 &mvif->bss_conf.mt76, 317 &mvif->sta.deflink.wcid, true); 318 if (ret) 319 goto out; 320 321 dev->mt76.vif_mask |= BIT_ULL(mvif->bss_conf.mt76.idx); 322 phy->omac_mask |= BIT_ULL(mvif->bss_conf.mt76.omac_idx); 323 324 idx = MT792x_WTBL_RESERVED - mvif->bss_conf.mt76.idx; 325 326 INIT_LIST_HEAD(&mvif->sta.deflink.wcid.poll_list); 327 mvif->sta.deflink.wcid.idx = idx; 328 mvif->sta.deflink.wcid.phy_idx = mvif->bss_conf.mt76.band_idx; 329 mvif->sta.deflink.wcid.hw_key_idx = -1; 330 mvif->sta.deflink.wcid.tx_info |= MT_WCID_TX_INFO_SET; 331 mt76_wcid_init(&mvif->sta.deflink.wcid); 332 333 mt7921_mac_wtbl_update(dev, idx, 334 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 335 336 ewma_rssi_init(&mvif->bss_conf.rssi); 337 338 rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.deflink.wcid); 339 if (vif->txq) { 340 mtxq = (struct mt76_txq *)vif->txq->drv_priv; 341 mtxq->wcid = idx; 342 } 343 344 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER; 345 if (phy->chip_cap & MT792x_CHIP_CAP_RSSI_NOTIFY_EVT_EN) 346 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_CQM_RSSI; 347 348 INIT_WORK(&mvif->csa_work, mt7921_csa_work); 349 timer_setup(&mvif->csa_timer, mt792x_csa_timer, 0); 350 out: 351 mt792x_mutex_release(dev); 352 353 return ret; 354 } 355 356 static void mt7921_roc_iter(void *priv, u8 *mac, 357 struct ieee80211_vif *vif) 358 { 359 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 360 struct mt792x_phy *phy = priv; 361 362 mt7921_mcu_abort_roc(phy, mvif, phy->roc_token_id); 363 } 364 365 void mt7921_roc_abort_sync(struct mt792x_dev *dev) 366 { 367 struct mt792x_phy *phy = &dev->phy; 368 369 del_timer_sync(&phy->roc_timer); 370 cancel_work_sync(&phy->roc_work); 371 if (test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state)) 372 ieee80211_iterate_interfaces(mt76_hw(dev), 373 IEEE80211_IFACE_ITER_RESUME_ALL, 374 mt7921_roc_iter, (void *)phy); 375 } 376 EXPORT_SYMBOL_GPL(mt7921_roc_abort_sync); 377 378 void mt7921_roc_work(struct work_struct *work) 379 { 380 struct mt792x_phy *phy; 381 382 phy = (struct mt792x_phy *)container_of(work, struct mt792x_phy, 383 roc_work); 384 385 if (!test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state)) 386 return; 387 388 mt792x_mutex_acquire(phy->dev); 389 ieee80211_iterate_active_interfaces(phy->mt76->hw, 390 IEEE80211_IFACE_ITER_RESUME_ALL, 391 mt7921_roc_iter, phy); 392 mt792x_mutex_release(phy->dev); 393 ieee80211_remain_on_channel_expired(phy->mt76->hw); 394 } 395 396 static int mt7921_abort_roc(struct mt792x_phy *phy, struct mt792x_vif *vif) 397 { 398 int err = 0; 399 400 del_timer_sync(&phy->roc_timer); 401 cancel_work_sync(&phy->roc_work); 402 403 mt792x_mutex_acquire(phy->dev); 404 if (test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state)) 405 err = mt7921_mcu_abort_roc(phy, vif, phy->roc_token_id); 406 mt792x_mutex_release(phy->dev); 407 408 return err; 409 } 410 411 static int mt7921_set_roc(struct mt792x_phy *phy, 412 struct mt792x_vif *vif, 413 struct ieee80211_channel *chan, 414 int duration, 415 enum mt7921_roc_req type) 416 { 417 int err; 418 419 if (test_and_set_bit(MT76_STATE_ROC, &phy->mt76->state)) 420 return -EBUSY; 421 422 phy->roc_grant = false; 423 424 err = mt7921_mcu_set_roc(phy, vif, chan, duration, type, 425 ++phy->roc_token_id); 426 if (err < 0) { 427 clear_bit(MT76_STATE_ROC, &phy->mt76->state); 428 goto out; 429 } 430 431 if (!wait_event_timeout(phy->roc_wait, phy->roc_grant, HZ)) { 432 mt7921_mcu_abort_roc(phy, vif, phy->roc_token_id); 433 clear_bit(MT76_STATE_ROC, &phy->mt76->state); 434 err = -ETIMEDOUT; 435 } 436 437 out: 438 return err; 439 } 440 441 static int mt7921_remain_on_channel(struct ieee80211_hw *hw, 442 struct ieee80211_vif *vif, 443 struct ieee80211_channel *chan, 444 int duration, 445 enum ieee80211_roc_type type) 446 { 447 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 448 struct mt792x_phy *phy = mt792x_hw_phy(hw); 449 int err; 450 451 mt792x_mutex_acquire(phy->dev); 452 err = mt7921_set_roc(phy, mvif, chan, duration, MT7921_ROC_REQ_ROC); 453 mt792x_mutex_release(phy->dev); 454 455 return err; 456 } 457 458 static int mt7921_cancel_remain_on_channel(struct ieee80211_hw *hw, 459 struct ieee80211_vif *vif) 460 { 461 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 462 struct mt792x_phy *phy = mt792x_hw_phy(hw); 463 464 return mt7921_abort_roc(phy, mvif); 465 } 466 467 int mt7921_set_channel(struct mt76_phy *mphy) 468 { 469 struct mt792x_phy *phy = mphy->priv; 470 struct mt792x_dev *dev = phy->dev; 471 int ret; 472 473 mt76_connac_pm_wake(mphy, &dev->pm); 474 ret = mt7921_mcu_set_chan_info(phy, MCU_EXT_CMD(CHANNEL_SWITCH)); 475 if (ret) 476 goto out; 477 478 mt792x_mac_set_timeing(phy); 479 mt792x_mac_reset_counters(phy); 480 phy->noise = 0; 481 482 out: 483 mt76_connac_power_save_sched(mphy, &dev->pm); 484 485 ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work, 486 MT792x_WATCHDOG_TIME); 487 488 return ret; 489 } 490 EXPORT_SYMBOL_GPL(mt7921_set_channel); 491 492 static int mt7921_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 493 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 494 struct ieee80211_key_conf *key) 495 { 496 struct mt792x_dev *dev = mt792x_hw_dev(hw); 497 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 498 struct mt792x_sta *msta = sta ? (struct mt792x_sta *)sta->drv_priv : 499 &mvif->sta; 500 struct mt76_wcid *wcid = &msta->deflink.wcid; 501 u8 *wcid_keyidx = &wcid->hw_key_idx; 502 int idx = key->keyidx, err = 0; 503 504 /* The hardware does not support per-STA RX GTK, fallback 505 * to software mode for these. 506 */ 507 if ((vif->type == NL80211_IFTYPE_ADHOC || 508 vif->type == NL80211_IFTYPE_MESH_POINT) && 509 (key->cipher == WLAN_CIPHER_SUITE_TKIP || 510 key->cipher == WLAN_CIPHER_SUITE_CCMP) && 511 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 512 return -EOPNOTSUPP; 513 514 /* fall back to sw encryption for unsupported ciphers */ 515 switch (key->cipher) { 516 case WLAN_CIPHER_SUITE_AES_CMAC: 517 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE; 518 wcid_keyidx = &wcid->hw_key_idx2; 519 break; 520 case WLAN_CIPHER_SUITE_WEP40: 521 case WLAN_CIPHER_SUITE_WEP104: 522 if (!mvif->wep_sta) 523 return -EOPNOTSUPP; 524 break; 525 case WLAN_CIPHER_SUITE_TKIP: 526 case WLAN_CIPHER_SUITE_CCMP: 527 case WLAN_CIPHER_SUITE_CCMP_256: 528 case WLAN_CIPHER_SUITE_GCMP: 529 case WLAN_CIPHER_SUITE_GCMP_256: 530 case WLAN_CIPHER_SUITE_SMS4: 531 break; 532 default: 533 return -EOPNOTSUPP; 534 } 535 536 mt792x_mutex_acquire(dev); 537 538 if (cmd == SET_KEY) { 539 *wcid_keyidx = idx; 540 } else { 541 if (idx == *wcid_keyidx) 542 *wcid_keyidx = -1; 543 544 /* For security issue we don't trigger the key deletion when 545 * reassociating. But we should trigger the deletion process 546 * to avoid using incorrect cipher after disconnection, 547 */ 548 if (vif->type != NL80211_IFTYPE_STATION || vif->cfg.assoc) 549 goto out; 550 } 551 552 mt76_wcid_key_setup(&dev->mt76, wcid, key); 553 err = mt76_connac_mcu_add_key(&dev->mt76, vif, &msta->deflink.bip, 554 key, MCU_UNI_CMD(STA_REC_UPDATE), 555 &msta->deflink.wcid, cmd); 556 if (err) 557 goto out; 558 559 if (key->cipher == WLAN_CIPHER_SUITE_WEP104 || 560 key->cipher == WLAN_CIPHER_SUITE_WEP40) 561 err = mt76_connac_mcu_add_key(&dev->mt76, vif, 562 &mvif->wep_sta->deflink.bip, 563 key, MCU_UNI_CMD(STA_REC_UPDATE), 564 &mvif->wep_sta->deflink.wcid, cmd); 565 out: 566 mt792x_mutex_release(dev); 567 568 return err; 569 } 570 571 static void 572 mt7921_pm_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif) 573 { 574 struct mt792x_dev *dev = priv; 575 struct ieee80211_hw *hw = mt76_hw(dev); 576 bool pm_enable = dev->pm.enable; 577 int err; 578 579 err = mt7921_mcu_set_beacon_filter(dev, vif, pm_enable); 580 if (err < 0) 581 return; 582 583 if (pm_enable) { 584 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER; 585 ieee80211_hw_set(hw, CONNECTION_MONITOR); 586 } else { 587 vif->driver_flags &= ~IEEE80211_VIF_BEACON_FILTER; 588 __clear_bit(IEEE80211_HW_CONNECTION_MONITOR, hw->flags); 589 } 590 } 591 592 static void 593 mt7921_sniffer_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif) 594 { 595 struct mt792x_dev *dev = priv; 596 struct ieee80211_hw *hw = mt76_hw(dev); 597 struct mt76_connac_pm *pm = &dev->pm; 598 bool monitor = !!(hw->conf.flags & IEEE80211_CONF_MONITOR); 599 600 mt7921_mcu_set_sniffer(dev, vif, monitor); 601 pm->enable = pm->enable_user && !monitor; 602 pm->ds_enable = pm->ds_enable_user && !monitor; 603 604 mt76_connac_mcu_set_deep_sleep(&dev->mt76, pm->ds_enable); 605 606 if (monitor) 607 mt7921_mcu_set_beacon_filter(dev, vif, false); 608 } 609 610 void mt7921_set_runtime_pm(struct mt792x_dev *dev) 611 { 612 struct ieee80211_hw *hw = mt76_hw(dev); 613 struct mt76_connac_pm *pm = &dev->pm; 614 bool monitor = !!(hw->conf.flags & IEEE80211_CONF_MONITOR); 615 616 pm->enable = pm->enable_user && !monitor; 617 ieee80211_iterate_active_interfaces(hw, 618 IEEE80211_IFACE_ITER_RESUME_ALL, 619 mt7921_pm_interface_iter, dev); 620 pm->ds_enable = pm->ds_enable_user && !monitor; 621 mt76_connac_mcu_set_deep_sleep(&dev->mt76, pm->ds_enable); 622 } 623 624 static int mt7921_config(struct ieee80211_hw *hw, u32 changed) 625 { 626 struct mt792x_dev *dev = mt792x_hw_dev(hw); 627 struct mt792x_phy *phy = mt792x_hw_phy(hw); 628 int ret = 0; 629 630 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { 631 ret = mt76_update_channel(phy->mt76); 632 if (ret) 633 return ret; 634 } 635 636 mt792x_mutex_acquire(dev); 637 638 if (changed & IEEE80211_CONF_CHANGE_POWER) { 639 ret = mt7921_set_tx_sar_pwr(hw, NULL); 640 if (ret) 641 goto out; 642 } 643 644 if (changed & IEEE80211_CONF_CHANGE_MONITOR) { 645 ieee80211_iterate_active_interfaces(hw, 646 IEEE80211_IFACE_ITER_RESUME_ALL, 647 mt7921_sniffer_interface_iter, dev); 648 } 649 650 out: 651 mt792x_mutex_release(dev); 652 653 return ret; 654 } 655 656 static void mt7921_configure_filter(struct ieee80211_hw *hw, 657 unsigned int changed_flags, 658 unsigned int *total_flags, 659 u64 multicast) 660 { 661 #define MT7921_FILTER_FCSFAIL BIT(2) 662 #define MT7921_FILTER_CONTROL BIT(5) 663 #define MT7921_FILTER_OTHER_BSS BIT(6) 664 #define MT7921_FILTER_ENABLE BIT(31) 665 666 struct mt792x_dev *dev = mt792x_hw_dev(hw); 667 u32 flags = MT7921_FILTER_ENABLE; 668 669 #define MT7921_FILTER(_fif, _type) do { \ 670 if (*total_flags & (_fif)) \ 671 flags |= MT7921_FILTER_##_type; \ 672 } while (0) 673 674 MT7921_FILTER(FIF_FCSFAIL, FCSFAIL); 675 MT7921_FILTER(FIF_CONTROL, CONTROL); 676 MT7921_FILTER(FIF_OTHER_BSS, OTHER_BSS); 677 678 mt792x_mutex_acquire(dev); 679 mt7921_mcu_set_rxfilter(dev, flags, 0, 0); 680 mt792x_mutex_release(dev); 681 682 *total_flags &= (FIF_OTHER_BSS | FIF_FCSFAIL | FIF_CONTROL); 683 } 684 685 static void mt7921_bss_info_changed(struct ieee80211_hw *hw, 686 struct ieee80211_vif *vif, 687 struct ieee80211_bss_conf *info, 688 u64 changed) 689 { 690 struct mt792x_phy *phy = mt792x_hw_phy(hw); 691 struct mt792x_dev *dev = mt792x_hw_dev(hw); 692 693 mt792x_mutex_acquire(dev); 694 695 if (changed & BSS_CHANGED_ERP_SLOT) { 696 int slottime = info->use_short_slot ? 9 : 20; 697 698 if (slottime != phy->slottime) { 699 phy->slottime = slottime; 700 mt792x_mac_set_timeing(phy); 701 } 702 } 703 704 if (changed & (BSS_CHANGED_BEACON | 705 BSS_CHANGED_BEACON_ENABLED)) 706 mt7921_mcu_uni_add_beacon_offload(dev, hw, vif, 707 info->enable_beacon); 708 709 /* ensure that enable txcmd_mode after bss_info */ 710 if (changed & (BSS_CHANGED_QOS | BSS_CHANGED_BEACON_ENABLED)) 711 mt7921_mcu_set_tx(dev, vif); 712 713 if (changed & BSS_CHANGED_PS) 714 mt7921_mcu_uni_bss_ps(dev, vif); 715 716 if (changed & BSS_CHANGED_CQM) 717 mt7921_mcu_set_rssimonitor(dev, vif); 718 719 if (changed & BSS_CHANGED_ASSOC) { 720 mt7921_mcu_sta_update(dev, NULL, vif, true, 721 MT76_STA_INFO_STATE_ASSOC); 722 mt7921_mcu_set_beacon_filter(dev, vif, vif->cfg.assoc); 723 } 724 725 if (changed & BSS_CHANGED_ARP_FILTER) { 726 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 727 728 mt76_connac_mcu_update_arp_filter(&dev->mt76, &mvif->bss_conf.mt76, 729 info); 730 } 731 732 mt792x_mutex_release(dev); 733 } 734 735 static void 736 mt7921_calc_vif_num(void *priv, u8 *mac, struct ieee80211_vif *vif) 737 { 738 u32 *num = priv; 739 740 if (!priv) 741 return; 742 743 switch (vif->type) { 744 case NL80211_IFTYPE_STATION: 745 case NL80211_IFTYPE_P2P_CLIENT: 746 case NL80211_IFTYPE_AP: 747 case NL80211_IFTYPE_P2P_GO: 748 *num += 1; 749 break; 750 default: 751 break; 752 } 753 } 754 755 static void 756 mt7921_regd_set_6ghz_power_type(struct ieee80211_vif *vif, bool is_add) 757 { 758 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 759 struct mt792x_phy *phy = mvif->phy; 760 struct mt792x_dev *dev = phy->dev; 761 u32 valid_vif_num = 0; 762 763 ieee80211_iterate_active_interfaces(mt76_hw(dev), 764 IEEE80211_IFACE_ITER_RESUME_ALL, 765 mt7921_calc_vif_num, &valid_vif_num); 766 767 if (valid_vif_num > 1) { 768 phy->power_type = MT_AP_DEFAULT; 769 goto out; 770 } 771 772 if (!is_add) 773 vif->bss_conf.power_type = IEEE80211_REG_UNSET_AP; 774 775 switch (vif->bss_conf.power_type) { 776 case IEEE80211_REG_SP_AP: 777 phy->power_type = MT_AP_SP; 778 break; 779 case IEEE80211_REG_VLP_AP: 780 phy->power_type = MT_AP_VLP; 781 break; 782 case IEEE80211_REG_LPI_AP: 783 phy->power_type = MT_AP_LPI; 784 break; 785 case IEEE80211_REG_UNSET_AP: 786 phy->power_type = MT_AP_UNSET; 787 break; 788 default: 789 phy->power_type = MT_AP_DEFAULT; 790 break; 791 } 792 793 out: 794 mt7921_mcu_set_clc(dev, dev->mt76.alpha2, dev->country_ie_env); 795 } 796 797 int mt7921_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif, 798 struct ieee80211_sta *sta) 799 { 800 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); 801 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; 802 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 803 int ret, idx; 804 805 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT792x_WTBL_STA - 1); 806 if (idx < 0) 807 return -ENOSPC; 808 809 INIT_LIST_HEAD(&msta->deflink.wcid.poll_list); 810 msta->vif = mvif; 811 msta->deflink.wcid.sta = 1; 812 msta->deflink.wcid.idx = idx; 813 msta->deflink.wcid.phy_idx = mvif->bss_conf.mt76.band_idx; 814 msta->deflink.wcid.tx_info |= MT_WCID_TX_INFO_SET; 815 msta->deflink.last_txs = jiffies; 816 817 ret = mt76_connac_pm_wake(&dev->mphy, &dev->pm); 818 if (ret) 819 return ret; 820 821 if (vif->type == NL80211_IFTYPE_STATION) 822 mvif->wep_sta = msta; 823 824 mt7921_mac_wtbl_update(dev, idx, 825 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 826 827 ret = mt7921_mcu_sta_update(dev, sta, vif, true, 828 MT76_STA_INFO_STATE_NONE); 829 if (ret) 830 return ret; 831 832 mt7921_regd_set_6ghz_power_type(vif, true); 833 834 mt76_connac_power_save_sched(&dev->mphy, &dev->pm); 835 836 return 0; 837 } 838 EXPORT_SYMBOL_GPL(mt7921_mac_sta_add); 839 840 int mt7921_mac_sta_event(struct mt76_dev *mdev, struct ieee80211_vif *vif, 841 struct ieee80211_sta *sta, enum mt76_sta_event ev) 842 { 843 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); 844 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; 845 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 846 847 if (ev != MT76_STA_EVENT_ASSOC) 848 return 0; 849 850 mt792x_mutex_acquire(dev); 851 852 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 853 mt76_connac_mcu_uni_add_bss(&dev->mphy, vif, &mvif->sta.deflink.wcid, 854 true, mvif->bss_conf.mt76.ctx); 855 856 ewma_avg_signal_init(&msta->deflink.avg_ack_signal); 857 858 mt7921_mac_wtbl_update(dev, msta->deflink.wcid.idx, 859 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 860 memset(msta->deflink.airtime_ac, 0, sizeof(msta->deflink.airtime_ac)); 861 862 mt7921_mcu_sta_update(dev, sta, vif, true, MT76_STA_INFO_STATE_ASSOC); 863 864 mt792x_mutex_release(dev); 865 866 return 0; 867 } 868 EXPORT_SYMBOL_GPL(mt7921_mac_sta_event); 869 870 void mt7921_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, 871 struct ieee80211_sta *sta) 872 { 873 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); 874 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; 875 876 mt7921_roc_abort_sync(dev); 877 mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->deflink.wcid); 878 mt76_connac_pm_wake(&dev->mphy, &dev->pm); 879 880 mt7921_mcu_sta_update(dev, sta, vif, false, MT76_STA_INFO_STATE_NONE); 881 mt7921_mac_wtbl_update(dev, msta->deflink.wcid.idx, 882 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 883 884 if (vif->type == NL80211_IFTYPE_STATION) { 885 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 886 887 mvif->wep_sta = NULL; 888 ewma_rssi_init(&mvif->bss_conf.rssi); 889 if (!sta->tdls) 890 mt76_connac_mcu_uni_add_bss(&dev->mphy, vif, 891 &mvif->sta.deflink.wcid, false, 892 mvif->bss_conf.mt76.ctx); 893 } 894 895 spin_lock_bh(&dev->mt76.sta_poll_lock); 896 if (!list_empty(&msta->deflink.wcid.poll_list)) 897 list_del_init(&msta->deflink.wcid.poll_list); 898 spin_unlock_bh(&dev->mt76.sta_poll_lock); 899 900 mt7921_regd_set_6ghz_power_type(vif, false); 901 902 mt76_connac_power_save_sched(&dev->mphy, &dev->pm); 903 } 904 EXPORT_SYMBOL_GPL(mt7921_mac_sta_remove); 905 906 static int mt7921_set_rts_threshold(struct ieee80211_hw *hw, u32 val) 907 { 908 struct mt792x_dev *dev = mt792x_hw_dev(hw); 909 910 mt792x_mutex_acquire(dev); 911 mt76_connac_mcu_set_rts_thresh(&dev->mt76, val, 0); 912 mt792x_mutex_release(dev); 913 914 return 0; 915 } 916 917 static int 918 mt7921_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 919 struct ieee80211_ampdu_params *params) 920 { 921 enum ieee80211_ampdu_mlme_action action = params->action; 922 struct mt792x_dev *dev = mt792x_hw_dev(hw); 923 struct ieee80211_sta *sta = params->sta; 924 struct ieee80211_txq *txq = sta->txq[params->tid]; 925 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; 926 u16 tid = params->tid; 927 u16 ssn = params->ssn; 928 struct mt76_txq *mtxq; 929 int ret = 0; 930 931 if (!txq) 932 return -EINVAL; 933 934 mtxq = (struct mt76_txq *)txq->drv_priv; 935 936 mt792x_mutex_acquire(dev); 937 switch (action) { 938 case IEEE80211_AMPDU_RX_START: 939 mt76_rx_aggr_start(&dev->mt76, &msta->deflink.wcid, tid, ssn, 940 params->buf_size); 941 mt7921_mcu_uni_rx_ba(dev, params, true); 942 break; 943 case IEEE80211_AMPDU_RX_STOP: 944 mt76_rx_aggr_stop(&dev->mt76, &msta->deflink.wcid, tid); 945 mt7921_mcu_uni_rx_ba(dev, params, false); 946 break; 947 case IEEE80211_AMPDU_TX_OPERATIONAL: 948 mtxq->aggr = true; 949 mtxq->send_bar = false; 950 mt7921_mcu_uni_tx_ba(dev, params, true); 951 break; 952 case IEEE80211_AMPDU_TX_STOP_FLUSH: 953 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 954 mtxq->aggr = false; 955 clear_bit(tid, &msta->deflink.wcid.ampdu_state); 956 mt7921_mcu_uni_tx_ba(dev, params, false); 957 break; 958 case IEEE80211_AMPDU_TX_START: 959 set_bit(tid, &msta->deflink.wcid.ampdu_state); 960 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; 961 break; 962 case IEEE80211_AMPDU_TX_STOP_CONT: 963 mtxq->aggr = false; 964 clear_bit(tid, &msta->deflink.wcid.ampdu_state); 965 mt7921_mcu_uni_tx_ba(dev, params, false); 966 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 967 break; 968 } 969 mt792x_mutex_release(dev); 970 971 return ret; 972 } 973 974 static int mt7921_sta_state(struct ieee80211_hw *hw, 975 struct ieee80211_vif *vif, 976 struct ieee80211_sta *sta, 977 enum ieee80211_sta_state old_state, 978 enum ieee80211_sta_state new_state) 979 { 980 struct mt792x_dev *dev = mt792x_hw_dev(hw); 981 982 if (dev->pm.ds_enable) { 983 mt792x_mutex_acquire(dev); 984 mt76_connac_sta_state_dp(&dev->mt76, old_state, new_state); 985 mt792x_mutex_release(dev); 986 } 987 988 return mt76_sta_state(hw, vif, sta, old_state, new_state); 989 } 990 991 void mt7921_scan_work(struct work_struct *work) 992 { 993 struct mt792x_phy *phy; 994 995 phy = (struct mt792x_phy *)container_of(work, struct mt792x_phy, 996 scan_work.work); 997 998 while (true) { 999 struct mt76_connac2_mcu_rxd *rxd; 1000 struct sk_buff *skb; 1001 1002 spin_lock_bh(&phy->dev->mt76.lock); 1003 skb = __skb_dequeue(&phy->scan_event_list); 1004 spin_unlock_bh(&phy->dev->mt76.lock); 1005 1006 if (!skb) 1007 break; 1008 1009 rxd = (struct mt76_connac2_mcu_rxd *)skb->data; 1010 if (rxd->eid == MCU_EVENT_SCHED_SCAN_DONE) { 1011 ieee80211_sched_scan_results(phy->mt76->hw); 1012 } else if (test_and_clear_bit(MT76_HW_SCANNING, 1013 &phy->mt76->state)) { 1014 struct cfg80211_scan_info info = { 1015 .aborted = false, 1016 }; 1017 1018 ieee80211_scan_completed(phy->mt76->hw, &info); 1019 } 1020 dev_kfree_skb(skb); 1021 } 1022 } 1023 1024 static int 1025 mt7921_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1026 struct ieee80211_scan_request *req) 1027 { 1028 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1029 struct mt76_phy *mphy = hw->priv; 1030 int err; 1031 1032 mt792x_mutex_acquire(dev); 1033 err = mt76_connac_mcu_hw_scan(mphy, vif, req); 1034 mt792x_mutex_release(dev); 1035 1036 return err; 1037 } 1038 1039 static void 1040 mt7921_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 1041 { 1042 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1043 struct mt76_phy *mphy = hw->priv; 1044 1045 mt792x_mutex_acquire(dev); 1046 mt76_connac_mcu_cancel_hw_scan(mphy, vif); 1047 mt792x_mutex_release(dev); 1048 } 1049 1050 static int 1051 mt7921_start_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1052 struct cfg80211_sched_scan_request *req, 1053 struct ieee80211_scan_ies *ies) 1054 { 1055 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1056 struct mt76_phy *mphy = hw->priv; 1057 int err; 1058 1059 mt792x_mutex_acquire(dev); 1060 1061 err = mt76_connac_mcu_sched_scan_req(mphy, vif, req); 1062 if (err < 0) 1063 goto out; 1064 1065 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, true); 1066 out: 1067 mt792x_mutex_release(dev); 1068 1069 return err; 1070 } 1071 1072 static int 1073 mt7921_stop_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 1074 { 1075 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1076 struct mt76_phy *mphy = hw->priv; 1077 int err; 1078 1079 mt792x_mutex_acquire(dev); 1080 err = mt76_connac_mcu_sched_scan_enable(mphy, vif, false); 1081 mt792x_mutex_release(dev); 1082 1083 return err; 1084 } 1085 1086 static int 1087 mt7921_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) 1088 { 1089 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1090 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1091 int max_nss = hweight8(hw->wiphy->available_antennas_tx); 1092 1093 if (!tx_ant || tx_ant != rx_ant || ffs(tx_ant) > max_nss) 1094 return -EINVAL; 1095 1096 if ((BIT(hweight8(tx_ant)) - 1) != tx_ant) 1097 return -EINVAL; 1098 1099 mt792x_mutex_acquire(dev); 1100 1101 phy->mt76->antenna_mask = tx_ant; 1102 phy->mt76->chainmask = tx_ant; 1103 1104 mt76_set_stream_caps(phy->mt76, true); 1105 mt7921_set_stream_he_caps(phy); 1106 1107 mt792x_mutex_release(dev); 1108 1109 return 0; 1110 } 1111 1112 #ifdef CONFIG_PM 1113 static int mt7921_suspend(struct ieee80211_hw *hw, 1114 struct cfg80211_wowlan *wowlan) 1115 { 1116 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1117 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1118 1119 cancel_delayed_work_sync(&phy->scan_work); 1120 cancel_delayed_work_sync(&phy->mt76->mac_work); 1121 1122 cancel_delayed_work_sync(&dev->pm.ps_work); 1123 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL); 1124 1125 mt792x_mutex_acquire(dev); 1126 1127 clear_bit(MT76_STATE_RUNNING, &phy->mt76->state); 1128 ieee80211_iterate_active_interfaces(hw, 1129 IEEE80211_IFACE_ITER_RESUME_ALL, 1130 mt7921_mcu_set_suspend_iter, 1131 &dev->mphy); 1132 1133 mt792x_mutex_release(dev); 1134 1135 return 0; 1136 } 1137 1138 static int mt7921_resume(struct ieee80211_hw *hw) 1139 { 1140 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1141 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1142 1143 mt792x_mutex_acquire(dev); 1144 1145 set_bit(MT76_STATE_RUNNING, &phy->mt76->state); 1146 ieee80211_iterate_active_interfaces(hw, 1147 IEEE80211_IFACE_ITER_RESUME_ALL, 1148 mt76_connac_mcu_set_suspend_iter, 1149 &dev->mphy); 1150 1151 ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work, 1152 MT792x_WATCHDOG_TIME); 1153 1154 mt792x_mutex_release(dev); 1155 1156 return 0; 1157 } 1158 1159 static void mt7921_set_rekey_data(struct ieee80211_hw *hw, 1160 struct ieee80211_vif *vif, 1161 struct cfg80211_gtk_rekey_data *data) 1162 { 1163 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1164 1165 mt792x_mutex_acquire(dev); 1166 mt76_connac_mcu_update_gtk_rekey(hw, vif, data); 1167 mt792x_mutex_release(dev); 1168 } 1169 #endif /* CONFIG_PM */ 1170 1171 static void mt7921_sta_set_decap_offload(struct ieee80211_hw *hw, 1172 struct ieee80211_vif *vif, 1173 struct ieee80211_sta *sta, 1174 bool enabled) 1175 { 1176 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; 1177 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1178 1179 mt792x_mutex_acquire(dev); 1180 1181 if (enabled) 1182 set_bit(MT_WCID_FLAG_HDR_TRANS, &msta->deflink.wcid.flags); 1183 else 1184 clear_bit(MT_WCID_FLAG_HDR_TRANS, &msta->deflink.wcid.flags); 1185 1186 mt76_connac_mcu_sta_update_hdr_trans(&dev->mt76, vif, &msta->deflink.wcid, 1187 MCU_UNI_CMD(STA_REC_UPDATE)); 1188 1189 mt792x_mutex_release(dev); 1190 } 1191 1192 #if IS_ENABLED(CONFIG_IPV6) 1193 static void mt7921_ipv6_addr_change(struct ieee80211_hw *hw, 1194 struct ieee80211_vif *vif, 1195 struct inet6_dev *idev) 1196 { 1197 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1198 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1199 struct inet6_ifaddr *ifa; 1200 struct in6_addr ns_addrs[IEEE80211_BSS_ARP_ADDR_LIST_LEN]; 1201 struct sk_buff *skb; 1202 u8 i, idx = 0; 1203 1204 struct { 1205 struct { 1206 u8 bss_idx; 1207 u8 pad[3]; 1208 } __packed hdr; 1209 struct mt76_connac_arpns_tlv arpns; 1210 } req_hdr = { 1211 .hdr = { 1212 .bss_idx = mvif->bss_conf.mt76.idx, 1213 }, 1214 .arpns = { 1215 .tag = cpu_to_le16(UNI_OFFLOAD_OFFLOAD_ND), 1216 .mode = 2, /* update */ 1217 .option = 1, /* update only */ 1218 }, 1219 }; 1220 1221 read_lock_bh(&idev->lock); 1222 list_for_each_entry(ifa, &idev->addr_list, if_list) { 1223 if (ifa->flags & IFA_F_TENTATIVE) 1224 continue; 1225 ns_addrs[idx] = ifa->addr; 1226 if (++idx >= IEEE80211_BSS_ARP_ADDR_LIST_LEN) 1227 break; 1228 } 1229 read_unlock_bh(&idev->lock); 1230 1231 if (!idx) 1232 return; 1233 1234 req_hdr.arpns.ips_num = idx; 1235 req_hdr.arpns.len = cpu_to_le16(sizeof(struct mt76_connac_arpns_tlv) 1236 + idx * sizeof(struct in6_addr)); 1237 skb = __mt76_mcu_msg_alloc(&dev->mt76, &req_hdr, 1238 sizeof(req_hdr) + idx * sizeof(struct in6_addr), 1239 sizeof(req_hdr), GFP_ATOMIC); 1240 if (!skb) 1241 return; 1242 1243 for (i = 0; i < idx; i++) 1244 skb_put_data(skb, &ns_addrs[i].in6_u, sizeof(struct in6_addr)); 1245 1246 skb_queue_tail(&dev->ipv6_ns_list, skb); 1247 1248 ieee80211_queue_work(dev->mt76.hw, &dev->ipv6_ns_work); 1249 } 1250 #endif 1251 1252 int mt7921_set_tx_sar_pwr(struct ieee80211_hw *hw, 1253 const struct cfg80211_sar_specs *sar) 1254 { 1255 struct mt76_phy *mphy = hw->priv; 1256 1257 if (sar) { 1258 int err = mt76_init_sar_power(hw, sar); 1259 1260 if (err) 1261 return err; 1262 } 1263 mt792x_init_acpi_sar_power(mt792x_hw_phy(hw), !sar); 1264 1265 return mt76_connac_mcu_set_rate_txpower(mphy); 1266 } 1267 1268 static int mt7921_set_sar_specs(struct ieee80211_hw *hw, 1269 const struct cfg80211_sar_specs *sar) 1270 { 1271 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1272 int err; 1273 1274 mt792x_mutex_acquire(dev); 1275 err = mt7921_mcu_set_clc(dev, dev->mt76.alpha2, 1276 dev->country_ie_env); 1277 if (err < 0) 1278 goto out; 1279 1280 err = mt7921_set_tx_sar_pwr(hw, sar); 1281 out: 1282 mt792x_mutex_release(dev); 1283 1284 return err; 1285 } 1286 1287 static void 1288 mt7921_channel_switch_beacon(struct ieee80211_hw *hw, 1289 struct ieee80211_vif *vif, 1290 struct cfg80211_chan_def *chandef) 1291 { 1292 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1293 1294 mt792x_mutex_acquire(dev); 1295 mt7921_mcu_uni_add_beacon_offload(dev, hw, vif, true); 1296 mt792x_mutex_release(dev); 1297 } 1298 1299 static int 1300 mt7921_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1301 struct ieee80211_bss_conf *link_conf) 1302 { 1303 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1304 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1305 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1306 int err; 1307 1308 mt792x_mutex_acquire(dev); 1309 1310 err = mt76_connac_mcu_uni_add_bss(phy->mt76, vif, &mvif->sta.deflink.wcid, 1311 true, mvif->bss_conf.mt76.ctx); 1312 if (err) 1313 goto out; 1314 1315 err = mt7921_mcu_set_bss_pm(dev, vif, true); 1316 if (err) 1317 goto out; 1318 1319 err = mt7921_mcu_sta_update(dev, NULL, vif, true, 1320 MT76_STA_INFO_STATE_NONE); 1321 out: 1322 mt792x_mutex_release(dev); 1323 1324 return err; 1325 } 1326 1327 static void 1328 mt7921_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1329 struct ieee80211_bss_conf *link_conf) 1330 { 1331 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1332 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1333 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1334 int err; 1335 1336 mt792x_mutex_acquire(dev); 1337 1338 err = mt7921_mcu_set_bss_pm(dev, vif, false); 1339 if (err) 1340 goto out; 1341 1342 mt76_connac_mcu_uni_add_bss(phy->mt76, vif, &mvif->sta.deflink.wcid, false, 1343 mvif->bss_conf.mt76.ctx); 1344 1345 out: 1346 mt792x_mutex_release(dev); 1347 } 1348 1349 static int 1350 mt7921_add_chanctx(struct ieee80211_hw *hw, 1351 struct ieee80211_chanctx_conf *ctx) 1352 { 1353 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1354 1355 dev->new_ctx = ctx; 1356 return 0; 1357 } 1358 1359 static void 1360 mt7921_remove_chanctx(struct ieee80211_hw *hw, 1361 struct ieee80211_chanctx_conf *ctx) 1362 { 1363 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1364 1365 if (dev->new_ctx == ctx) 1366 dev->new_ctx = NULL; 1367 } 1368 1369 static void 1370 mt7921_change_chanctx(struct ieee80211_hw *hw, 1371 struct ieee80211_chanctx_conf *ctx, 1372 u32 changed) 1373 { 1374 struct mt792x_chanctx *mctx = (struct mt792x_chanctx *)ctx->drv_priv; 1375 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1376 struct ieee80211_vif *vif; 1377 struct mt792x_vif *mvif; 1378 1379 if (!mctx->bss_conf) 1380 return; 1381 1382 mvif = container_of(mctx->bss_conf, struct mt792x_vif, bss_conf); 1383 vif = container_of((void *)mvif, struct ieee80211_vif, drv_priv); 1384 1385 mt792x_mutex_acquire(phy->dev); 1386 if (vif->type == NL80211_IFTYPE_MONITOR) 1387 mt7921_mcu_config_sniffer(mvif, ctx); 1388 else 1389 mt76_connac_mcu_uni_set_chctx(mvif->phy->mt76, &mvif->bss_conf.mt76, ctx); 1390 mt792x_mutex_release(phy->dev); 1391 } 1392 1393 static void mt7921_mgd_prepare_tx(struct ieee80211_hw *hw, 1394 struct ieee80211_vif *vif, 1395 struct ieee80211_prep_tx_info *info) 1396 { 1397 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1398 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1399 u16 duration = info->duration ? info->duration : 1400 jiffies_to_msecs(HZ); 1401 1402 mt792x_mutex_acquire(dev); 1403 mt7921_set_roc(mvif->phy, mvif, mvif->bss_conf.mt76.ctx->def.chan, duration, 1404 MT7921_ROC_REQ_JOIN); 1405 mt792x_mutex_release(dev); 1406 } 1407 1408 static void mt7921_mgd_complete_tx(struct ieee80211_hw *hw, 1409 struct ieee80211_vif *vif, 1410 struct ieee80211_prep_tx_info *info) 1411 { 1412 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1413 1414 mt7921_abort_roc(mvif->phy, mvif); 1415 } 1416 1417 static int mt7921_switch_vif_chanctx(struct ieee80211_hw *hw, 1418 struct ieee80211_vif_chanctx_switch *vifs, 1419 int n_vifs, 1420 enum ieee80211_chanctx_switch_mode mode) 1421 { 1422 return mt792x_assign_vif_chanctx(hw, vifs->vif, vifs->link_conf, 1423 vifs->new_ctx); 1424 } 1425 1426 void mt7921_csa_work(struct work_struct *work) 1427 { 1428 struct mt792x_vif *mvif; 1429 struct mt792x_dev *dev; 1430 struct ieee80211_vif *vif; 1431 int ret; 1432 1433 mvif = (struct mt792x_vif *)container_of(work, struct mt792x_vif, 1434 csa_work); 1435 dev = mvif->phy->dev; 1436 vif = container_of((void *)mvif, struct ieee80211_vif, drv_priv); 1437 1438 mt792x_mutex_acquire(dev); 1439 ret = mt76_connac_mcu_uni_set_chctx(mvif->phy->mt76, &mvif->bss_conf.mt76, 1440 dev->new_ctx); 1441 mt792x_mutex_release(dev); 1442 1443 ieee80211_chswitch_done(vif, !ret, 0); 1444 } 1445 1446 static int mt7921_pre_channel_switch(struct ieee80211_hw *hw, 1447 struct ieee80211_vif *vif, 1448 struct ieee80211_channel_switch *chsw) 1449 { 1450 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc) 1451 return -EOPNOTSUPP; 1452 1453 /* Avoid beacon loss due to the CAC(Channel Availability Check) time 1454 * of the AP. 1455 */ 1456 if (!cfg80211_chandef_usable(hw->wiphy, &chsw->chandef, 1457 IEEE80211_CHAN_RADAR)) 1458 return -EOPNOTSUPP; 1459 1460 return 0; 1461 } 1462 1463 static void mt7921_channel_switch(struct ieee80211_hw *hw, 1464 struct ieee80211_vif *vif, 1465 struct ieee80211_channel_switch *chsw) 1466 { 1467 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1468 u16 beacon_interval = vif->bss_conf.beacon_int; 1469 1470 mvif->csa_timer.expires = TU_TO_EXP_TIME(beacon_interval * chsw->count); 1471 add_timer(&mvif->csa_timer); 1472 } 1473 1474 static void mt7921_abort_channel_switch(struct ieee80211_hw *hw, 1475 struct ieee80211_vif *vif, 1476 struct ieee80211_bss_conf *link_conf) 1477 { 1478 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1479 1480 del_timer_sync(&mvif->csa_timer); 1481 cancel_work_sync(&mvif->csa_work); 1482 } 1483 1484 static void mt7921_channel_switch_rx_beacon(struct ieee80211_hw *hw, 1485 struct ieee80211_vif *vif, 1486 struct ieee80211_channel_switch *chsw) 1487 { 1488 struct mt792x_dev *dev = mt792x_hw_dev(hw); 1489 struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; 1490 u16 beacon_interval = vif->bss_conf.beacon_int; 1491 1492 if (cfg80211_chandef_identical(&chsw->chandef, 1493 &dev->new_ctx->def) && 1494 chsw->count) { 1495 mod_timer(&mvif->csa_timer, 1496 TU_TO_EXP_TIME(beacon_interval * chsw->count)); 1497 } 1498 } 1499 1500 static void mt7921_rfkill_poll(struct ieee80211_hw *hw) 1501 { 1502 struct mt792x_phy *phy = mt792x_hw_phy(hw); 1503 int ret = 0; 1504 1505 mt792x_mutex_acquire(phy->dev); 1506 ret = mt7921_mcu_wf_rf_pin_ctrl(phy, WF_RF_PIN_POLL); 1507 mt792x_mutex_release(phy->dev); 1508 1509 wiphy_rfkill_set_hw_state(hw->wiphy, ret ? false : true); 1510 } 1511 1512 const struct ieee80211_ops mt7921_ops = { 1513 .tx = mt792x_tx, 1514 .start = mt7921_start, 1515 .stop = mt7921_stop, 1516 .add_interface = mt7921_add_interface, 1517 .remove_interface = mt792x_remove_interface, 1518 .config = mt7921_config, 1519 .conf_tx = mt792x_conf_tx, 1520 .configure_filter = mt7921_configure_filter, 1521 .bss_info_changed = mt7921_bss_info_changed, 1522 .start_ap = mt7921_start_ap, 1523 .stop_ap = mt7921_stop_ap, 1524 .sta_state = mt7921_sta_state, 1525 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove, 1526 .set_key = mt7921_set_key, 1527 .sta_set_decap_offload = mt7921_sta_set_decap_offload, 1528 #if IS_ENABLED(CONFIG_IPV6) 1529 .ipv6_addr_change = mt7921_ipv6_addr_change, 1530 #endif /* CONFIG_IPV6 */ 1531 .ampdu_action = mt7921_ampdu_action, 1532 .set_rts_threshold = mt7921_set_rts_threshold, 1533 .wake_tx_queue = mt76_wake_tx_queue, 1534 .release_buffered_frames = mt76_release_buffered_frames, 1535 .channel_switch_beacon = mt7921_channel_switch_beacon, 1536 .get_txpower = mt76_get_txpower, 1537 .get_stats = mt792x_get_stats, 1538 .get_et_sset_count = mt792x_get_et_sset_count, 1539 .get_et_strings = mt792x_get_et_strings, 1540 .get_et_stats = mt792x_get_et_stats, 1541 .get_tsf = mt792x_get_tsf, 1542 .set_tsf = mt792x_set_tsf, 1543 .get_survey = mt76_get_survey, 1544 .get_antenna = mt76_get_antenna, 1545 .set_antenna = mt7921_set_antenna, 1546 .set_coverage_class = mt792x_set_coverage_class, 1547 .hw_scan = mt7921_hw_scan, 1548 .cancel_hw_scan = mt7921_cancel_hw_scan, 1549 .sta_statistics = mt792x_sta_statistics, 1550 .sched_scan_start = mt7921_start_sched_scan, 1551 .sched_scan_stop = mt7921_stop_sched_scan, 1552 CFG80211_TESTMODE_CMD(mt7921_testmode_cmd) 1553 CFG80211_TESTMODE_DUMP(mt7921_testmode_dump) 1554 #ifdef CONFIG_PM 1555 .suspend = mt7921_suspend, 1556 .resume = mt7921_resume, 1557 .set_wakeup = mt792x_set_wakeup, 1558 .set_rekey_data = mt7921_set_rekey_data, 1559 #endif /* CONFIG_PM */ 1560 .flush = mt792x_flush, 1561 .set_sar_specs = mt7921_set_sar_specs, 1562 .rfkill_poll = mt7921_rfkill_poll, 1563 .remain_on_channel = mt7921_remain_on_channel, 1564 .cancel_remain_on_channel = mt7921_cancel_remain_on_channel, 1565 .add_chanctx = mt7921_add_chanctx, 1566 .remove_chanctx = mt7921_remove_chanctx, 1567 .change_chanctx = mt7921_change_chanctx, 1568 .assign_vif_chanctx = mt792x_assign_vif_chanctx, 1569 .unassign_vif_chanctx = mt792x_unassign_vif_chanctx, 1570 .mgd_prepare_tx = mt7921_mgd_prepare_tx, 1571 .mgd_complete_tx = mt7921_mgd_complete_tx, 1572 .switch_vif_chanctx = mt7921_switch_vif_chanctx, 1573 .pre_channel_switch = mt7921_pre_channel_switch, 1574 .channel_switch = mt7921_channel_switch, 1575 .abort_channel_switch = mt7921_abort_channel_switch, 1576 .channel_switch_rx_beacon = mt7921_channel_switch_rx_beacon, 1577 }; 1578 EXPORT_SYMBOL_GPL(mt7921_ops); 1579 1580 MODULE_DESCRIPTION("MediaTek MT7921 core driver"); 1581 MODULE_LICENSE("Dual BSD/GPL"); 1582 MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>"); 1583